Recently I got me a shiny package full of nice effects: Uhbik from U-he (VST2). But, MusE has a problem with saving the correct settings:
If I load an instance of, say, Uhbik-A, select a factory preset, and save the project, the preset's parameters are not saved. Most like MusE didn't get the memo that parameters have changed in the first place.
If, and only if, I manually adjust the knobs in the GUI, then these changes are correctly saved in the project. And only those ones!
This means that if you want to save the state of any Uhbik plugin correctly in a project, you must make sure to have changed all of their adjustable parameters manually at least once, including the bypass button and whatnot!
Must be something in the communication between MusE and Uhbik that fails. Renoise saves and loads all of Uhbik's parameters correctly, as far as I've tried it.
Edit: it concerns all automatable parameters. There are some non-automatable* ones, like the feedback activation switches of Uhbik-D, which are saved correctly when their state changes via the loading of a preset.
*They aren't exposed in MusE's automation column at least.